Transom-lock



A. EGKERT.

TRANSOM LOOK.

(No Model.)

No. 452,777. Patented May 26,1891.

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UNITED STATES A'lENT FFICE.

ANDREAS EOKERT, OF NElVARK, NEXV JERSEY.

TRANSOlVl-LOCK.

SPECIFICATION forming part of Letters Patent N 0. 452,777, dated May 26,1891.

Application filed March 11, 1891.

To aZZ whom it may concern.-

Be it known that I, ANDREAS EGKERT, a citi zen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Transom-Locks and I dohere by declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

This invention relates to improvements in looking devices for transoms;and the invention has for its object to provide a lock for .that purposewhich is of simple and cheap construction.

The invention therefore consists in certain arrangements andcombinations of parts, as will be hereinafter described, and finallyembodied in the clauses of the claim.

The invention is illustrated in the accompanying sheet of drawings, inwhich- Figure 1 is a front view of a transom to which my improved lockhas been secured. Fig. 2 is a vertical section of the transom, showingthe lock in end elevation secured thereto. Figs. 3 and 4 are views ofthe lock with the spring-bolt in its normal and its operated positions,respectively, the upper plate of the lock casing being removed. Fig. 5is a perspective view of a nosing employed. Figs. 6 and 7 are similarviews to Figs. 3 and at of a modified form of construct-ion. Fig. 8 is avertical section of a part of a transom and frame, the frame beingprovided with a different form of nosing shown in section, and the lockbeing shown in end elevation. Fig. 9 is a perspective View of the nosingemployed in connection with the construction shown in Fig. 8.

In the drawings, A is the transom, and A the frame. To said transom,preferably at the top thereof, as shown, is secured by means of screwsor pins a casing to, which may be made of sheet metal or may be cast.Said casing consists of the body part a and the cover a which aresecured together by suitable screws or rivets. lVithin said casing is apivoted locking-bolt Z), pivoted by means of a pin a to the casing. Saidlocking-bolt may be formed as illustrated in Figs. 3 and 4, being formedinto an eye Z), projecting through an opening a in the under side of thecasing. At its forward end said locking-bolt is formed into thelocking-arm 22 which is made to project from the casing a through anopening a in the side opposite to the side through which projects theeye portion of the bolt. One end of a spring 62 is placed between thecircular portion Z1 of the bolt and the inner side a of the casing,while the opposite end of said spring is secured behind a ledge or smallprojection b on the locking-arm. By means of this spring thelocking-bolt is normally held in the position indicated in Fig. 3. Asshown, the free end of thearm b is slightly chamfered.

Then the casing and its bolt have been secured to a transom, when thewindow is in its open position, said arm 12 projects from the casing Ctin the manner shown in Fig. 2. Then the window is swung upon its pivotsin closing, said rounded arm 6 slides readily upon the plate or nosinge, which is countersunk into the frame, as shown in Fig. 2, and which iswedge-shaped, said arm thereby being depressed while sliding oversaidplate, and finallybeing forced by means of the spring into holdingengagement in a recess in the frame A. (See Fig. 2.) In lieu of usingsaid plate e, as shown in Fig. 5, the nosing can be made, as shown inFigs. 8 and 9, being attached to the frame by means of screws, and beingprovided with the incline e" and the recess e into which said arm b isforced to lock the transom. I

A rope is fastened to the eye or ring 6, as shown in Figs. 1 and 2, forwithdrawing the bolt and opening the sash, as will be clearlyunderstood. As will be seen from the drawings, said bolt 12 is providedwith a cam-shaped corner 6 which, when the bolt is pulled down by meansof the rope, depresses the spring d as shown in Figs. 4 and 7, andcauses said spring to cause the bolt to swing more easily on its pivotalpost a. Said bolt 6 is also provided with a stop I) to limit theswinging movement.

If desirable, the bolt b may be made as represented in Figs. 6 and 7,the central portion of the bolt being formed U shape and the casing andits cover being cut away, so that said U-shaped portion of the boltprojects from the casing for securing the rope thereto, as will bereadily understood.

By my present form of construction I have secured a lock for transomswhich is of a very simple construction and which is very positive in itsaction.

7 Having thus described my invention, what I claim isj 1. A transom-lockconsisting of a casing adapted to be attached to awindow, said casinghaving openings a and a in its opposite sides, a-pivoted bolt?) in saidcasing, provided with acam end I) and its central portion projectingfrom. said casing through the opening a and provided with a locking-armb projecting from the opening a and a spring for causing saidlocking-arrn to engage with a plate or nosing e on the frame to hold thewindow in its closed position, substantially as set forth.

2. A transom-lock consisting of a casing adapted to be attached to thewindow, said casing having openings a and a in its opposite sides, apivoted bolt bin said casing, provided with a cam end 12 and aprojection b, a spring d, arranged between the inner side of the casingand said cam end and secured behind said projection b, an eye on saidbolt projecting from the opening a and a lockingarm projecting from theopening 01. in combination with a plate or nosing e, attached to theframe in which the Window is pivoted, substantially as and for thepurposes set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 9th day of March, 1891.

ANDREAS ECKERT.

